Here is a video I came across by David Zublick (Dark Outpost)–not sure of the date–which proclaims vaccines are to be tested in Australia using chemtrail application methods.  There is a Snopes article from 2018 that (of course) counters the claim.  Considering what has gone on in the last 2 years, would any of us be surprised if they did use chemtrail application technology to spread vaccines from above? You be the judge and feel free to research into it further.